Improvement in stove-grates



FRE BEn Hmm JUL is- 1871 Fii ' products of combustion, ashes and cinder.

UNITED $TATEs PATENT FFIGE.

IMPROVEMENT lN STOVE-GRATES.

Specification forming part of Letters Patent No. 117,194, dated July 18, 1871.

To all 'whom 'it may concem:

Be it known that I, GEORGE RCDNEY MoonE, of Philadelphia, in the County of Philadelphia and $tate of Pennsylvania, have invented certain Improvements in Fire-Beds for Heaters, &C., of which the following` is a specification:

The object of my invention is to provide a convenient, durable, and economical fire-bed, with facilities for discharging the ashes and cider at the bottom of the burning mass without disturbin g the fire above also, to provide ample draughts and to guard against waste of fine Coal.

The accompanying drawing shows my invention in'a Cylindrical Chamber, A, the lower part of which B may be regarded as the ash-pit, and the upper part O as the lower part of the firechamber in an ordinary heater.

The same letter indicates invariably the same part.

Figure 1 is aplan view from the top, and shows a series of shelves in ascending,` and widening order, F G E D. Two of these, F G, are sliding,` shelves, on a' level, and complete the fire-bed so that no fuel, not even fine Coal, put in the fire- Chamber can 'escape the shelves or be permitted to waste. Fig. 2, the same view, with the first shelf D left out, and the sliding shelves F G thrown open, as for the discharge of the refuse Fig. 3 is a transverse perpendicular section, and shows all the parts in their respective places. D is an inward shelf, or a contraction of the fire-Chamber. E is a snspcnded shelf outlapping beyond the inner edge of the one above it, and at the same time extending a considerable distance inward toward completing the fire-bed. Ample airspaces are left at both edges of it. Fig. 4 shows one of the optional forms in which the shelves D E may be put. These shelves may, at the option of the manufacturer, be put in flat or at any desircd angle, and either with or without grateopenings. They may also be put in loose, and made to vibrate, if desired, by any'of the ordinary devices in such cases. Fig. 5 is a plan view taken from the bottom, and shows the bars hz' Which sustain the sliding shelves F G; also, the levers j k by which the slides are operated. Fig.

as in Fig. 4, they will Clear themselves by being` v Vibrated. 5 V

It will be seen that this invention is additional to my patent of January 25, 1870.

The sliding shelves F G are cleaned off when thrown open by the strips above them, n o.

1 am aware that fire-pots have been made in sections or rings, so that the upper part is open while the lower is Closed, and that in base-burning stoves the fuel is sometimes supported by a series of rings or shelves, wlich forms channels for the introduction of air to the fuel in Circuitous passages; but these devices are unsatisfactory in use, and are distinct in Construction and the exact method of operation from mine.

I Claim- 1. The annular shelf or shelves E, horizontal or inclined, perforate or i'nperforate, fixed or vibratin'g, interposed between the grate or bottom of the fire-Chamber and the nouth of the reservoir or in the mass of the 'descending fuel, while at the same time they are open to thebase of the stove to admit a direct draught to the burning fuel.

2. The cleaning-strips n o with the sliding' shelves F G, or their mechanical equivalents, substantially as and for the purpose herein set forth.

3. The levers j k and sliding shelves F G, in combination with each other, substantially as and for the purpose herein set forth.

GEO. R. MOORE.

Witnesses: l

JOHN G. Cox, F. F. SCEVA. 

